linux-kernel - [PATCH] Input: tsc200x - Make use of the helper function dev_err

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Message-ID: <20210916153448.15317-1-caihuoqing@baidu.com>
Date:   Thu, 16 Sep 2021 23:34:47 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] Input: tsc200x - Make use of the helper function dev_err_probe()

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/input/touchscreen/tsc200x-core.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c
index b8d720d52013..a992aef48fa1 100644
--- a/drivers/input/touchscreen/tsc200x-core.c
+++ b/drivers/input/touchscreen/tsc200x-core.c
@@ -482,18 +482,14 @@ int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
 	ts->esd_timeout = error ? 0 : esd_timeout;
 
 	ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(ts->reset_gpio)) {
-		error = PTR_ERR(ts->reset_gpio);
-		dev_err(dev, "error acquiring reset gpio: %d\n", error);
-		return error;
-	}
+	if (IS_ERR(ts->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ts->reset_gpio),
+				     "error acquiring reset gpio\n");
 
 	ts->vio = devm_regulator_get(dev, "vio");
-	if (IS_ERR(ts->vio)) {
-		error = PTR_ERR(ts->vio);
-		dev_err(dev, "error acquiring vio regulator: %d", error);
-		return error;
-	}
+	if (IS_ERR(ts->vio))
+		return dev_err_probe(dev, PTR_ERR(ts->vio),
+				     "error acquiring vio regulator");
 
 	mutex_init(&ts->mutex);
 
-- 
2.25.1